A lost Nazi gold train was discovered in Poland. At least, that’s what a couple of treasure hunters told the world last year. Like all lost treasures, the search for this one had been going on for many years, usually without success. A lost Nazi gold train was discovered in Poland. At least, that’s what a couple of treasure hunters told the world last year. Like all lost treasures, the search for this one had been going on for many years, usually without success.